Restore Full Electrical Function to Your GM Vehicle
Are you dealing with baffling electrical problems in your 2007-2012 GMC Acadia? Flickering lights, unresponsive power windows, or a radio that seems to have a mind of its own are classic signs of a failing Body Control Module (BCM). As the central command for your vehicle’s body electronics, a faulty BCM can cause a cascade of frustrating and unpredictable issues. I’ve seen it countless times in the shop: a customer comes in thinking they have multiple separate problems, but a single diagnostic scan points directly to the BCM. This module is the solution, restoring the reliable performance you depend on.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We handle the most critical step for you by programming the module with the latest GM software updates, specifically matched to your vehicle’s VIN. This eliminates the need for an expensive trip to the dealership for programming, saving you both time and money. Simply provide your VIN at checkout, and we’ll ship a BCM that’s ready to get your Acadia back to 100%.
Case Study: The Parasitic Drain Puzzle
A customer brought in their 2011 Acadia with a battery that would die overnight. They had already replaced the battery and alternator, but the problem persisted. After connecting my scanner, I noticed several communication loss codes (U-codes) with various modules. Instead of chasing ghosts, I went straight to the BCM data. I found that the BCM was failing to put the retained accessory power (RAP) circuit to sleep, keeping modules active long after the key was off. This internal BCM failure was creating the parasitic drain. Installing a properly programmed 2007-2012 Acadia BCM solved the battery drain and cleared all communication faults instantly. It’s a common failure point on these platforms.
Is Your Vehicle Exhibiting These BCM Failure Signs?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is the likely solution.
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The security system acting erratically or preventing the vehicle from starting.
- ✔ Horn sounding randomly or not working when pressed.
- ✔ Radio or infotainment system malfunctions.
- ✔ False warnings on the driver information center (DIC).
- ✔ Communication error codes (U-codes) stored in the system.
- ✔ A noticeable parasitic battery drain that kills the battery overnight.
A Straightforward Guide to Your BCM Installation
For the confident DIYer, replacing the BCM is a manageable job. In the GMC Acadia, it’s typically located on the left (driver’s) side of the dash. Always consult a service manual for your specific vehicle’s location and procedure.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before beginning work.
- Locate the BCM: On the 2007-2012 Acadia, this is usually found under the driver’s side of the dashboard, often near the steering column. You may need to remove a lower dash panel for access.
- Disconnect Connectors: Carefully unplug all electrical connectors from the old BCM. They have locking tabs that need to be depressed to be released. Do not force them.
- Remove the Old Module: Unbolt or unclip the old BCM from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location and securely plug in all the electrical connectors.
- Reconnect Battery: Re-attach the negative battery terminal.
- Perform Post-Install Checks: Start the vehicle and test all body functions—lights, locks, windows, radio, etc. Note the post-installation procedures below, as some relearn steps may be required.
Important Post-Installation Information
While this 2007-2012 Acadia BCM arrives programmed, your vehicle’s other systems may need to be re-synced to the new module. This is a normal part of the process.
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is necessary. This requires a professional-grade scan tool to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure correct brake light and traction control operation. This also typically requires a capable scan tool.
- No Core Charge: You are not required to return your old BCM. There is no core charge or hassle involved.
Guaranteed Vehicle Compatibility
This module is a direct replacement for a wide range of GM vehicles and part numbers. Please verify your vehicle is on this list. This unit replaces part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084.
Note: This is a comprehensive list. Always confirm the location and specific ID number for your exact model and year as variations exist.
Frequently Asked Questions
Why is providing my VIN so important?
Your VIN (Vehicle Identification Number) allows us to program the BCM with the exact software and settings your vehicle’s specific options require. This ensures compatibility and proper function right out of the box, saving you a trip to the dealer.
Is any other programming needed after I install it?
The BCM itself comes fully programmed. However, as mentioned in the description, you may need to perform a couple of vehicle-level relearn procedures, such as for the airbag system or brake pedal position sensor, if you get specific warning lights after installation. This requires a capable scan tool.
What does ‘No Core Charge’ mean?
It means you don’t have to send your old, faulty BCM back to us. You can keep it or dispose of it yourself. This simplifies the process and saves you the cost and hassle of return shipping.
Can I install this myself if I’m not a professional mechanic?
Yes, if you are comfortable working under your vehicle’s dashboard and have basic hand tools, the physical installation is straightforward. The key is to be aware that some post-install electronic relearn procedures might be necessary, which may require help from a shop if you don’t own a high-level scan tool.
Will this fix my ‘Service Airbag’ light?
If the BCM is the source of the airbag system fault, then yes. However, after installing the new BCM, the airbag light may stay on until the ‘Setup SDM Primary Key in BCM’ procedure is completed to sync the modules. If the fault is in a different part of the airbag system (like a sensor or the SDM itself), this will not fix it.